YAP1 is essential for osteoclastogenesis through a TEADs-dependent mechanism
YAP1 is essential for osteoclastogenesis through a TEADs-dependent mechanism
复制标题
YAP1 通过 TEAD 依赖性机制对于破骨细胞生成至关重要
DOI：
10.1016/j.bone.2018.01.035
复制
发表时间：
2018
期刊：
影响因子：
4.1
通讯作者：
Xiao Jun
中科院分区：
文献类型：
--
作者：
Zhao Liming;Guan Hanfeng;Song Chao;Wang Yuting;Liu Changyu;Cai Cong;Zhu Hao;Liu Hui;Zhao Libo;Xiao Jun
Yes-associated protein 1 (YAP1), the core effector of the Hippo signaling pathway, has been identified as a key regulator of tissue homeostasis and organ development by controlling cell proliferation and differentiation. Previous studies have shown that YAP1 regulates multiple steps during skeletal development and bone remodeling, including the self-renewal and differentiation of mesenchymal stem cells (MSCs). However, its role in osteoclastogenesis remains largely unknown. Here, we report that YAP1 is an essential regulator for osteoclast differentiation and activity. Both mRNA and protein levels of YAP1 were downregulated during RANKL-induced osteoclastogenesis. Short hairpin RNA-mediated knockdown of YAP1 in bone marrow-derived macrophages (BMM) prevented the formation and function of multinucleated osteoclasts, and markedly abrogated the expression of osteoclast marker genes. Furthermore, the suppression of osteoclastogenesis and bone resorption activity were also observed in the BMM treated with verteporfin, a small molecule that inhibits the association of YAP1 with the transcriptional enhancer-associated domain (TEAD) family of transcription factors, the major partner of YAP1. Mechanistically, the interaction of YAP1/TEADs with AP-1 and cooperation on downstream gene transcription were confirmed, and RANKL-induced NF-κB signaling was also impaired in the YAP1-inhibited condition. Our results revealed the essential role of YAP1 and the YAP1-TEADs complex in regulating osteoclastogenesis and related gene expression.
